feat(spc): add user role to members list, remove name

[nbaztec]

• Members table now shows each member's project role instead of their editable name
• Removed the free-form Name column that could go stale when users edited their profile
• Delete action collapsed to a compact trash icon
• "Role" column label added to the interface

[vercel]

@nbaztec is attempting to deploy a commit to the Solana Foundation Team on Vercel.

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[greptile-apps]

Greptile Summary

This PR replaces editable member names with project roles in the private-channel members list.

• Adds a left-joined project role to repository rows and API DTOs while preserving orphaned rows for cleanup.
• Displays active roles and a revoked-membership warning in the members table.
• Replaces the text delete action with an accessible trash-icon button.
• Adds repository and UI coverage for active and revoked project memberships.

Confidence Score: 5/5

The PR appears safe to merge.

No blocking failure remains.

Important Files Changed

Filename	Overview
apps/sdp-api/src/db/repositories/private-channel-user.repository.postgres.ts	Adds an at-most-one project-membership join while preserving private-channel rows after membership removal, resolving the previously reported lookup and cleanup failure.
apps/sdp-api/src/routes/private-channels/handlers/members.ts	Maps the newly selected project role into the member response DTO.
packages/sdp-types/src/private-channels.ts	Extends the shared member DTO with a nullable per-project role.
apps/sdp-web/src/app/dashboard/payments/private-channels/members/members-table.tsx	Replaces the name column with role state and uses an accessible compact delete action.
apps/sdp-api/src/db/repositories/private-channel-user.repository.test.ts	Covers role retrieval and continued visibility after project membership removal.
apps/sdp-web/src/app/dashboard/payments/private-channels/members/members-table.unit.test.tsx	Covers rendering for active roles and revoked memberships.

_{Reviews (2): Last reviewed commit: "handle project membership revoke for SPC..." | Re-trigger Greptile}

[greptile-apps]

Project membership hides workspace rows

When an invited user's project membership is removed, the new INNER JOIN makes their persisted private-channel row disappear from list and lookup operations, causing management requests to return 404 and preventing the row from being deleted through the API. The same join in create can fail after the insert and external registration have succeeded when membership is removed during an invitation, leaving partial state that conflicts on retry.

Knowledge Base Used: sdp-api Data Layer